Is this possible?

Hi all

I have just made some modifikations in my AFCAD with ADE in a scenery and I have placed some objects
unfortunately I accidentally lost master file i made with ADE contains all the objects.

So i now have the normal ADE file, and the obj file i my scenery folder which is normal.

But is there anyway i can open the obj file to see which objects i have added?

The best regards